Boolean.prototype.valueOf() - JavaScript 编辑
The valueOf()
method returns the primitive value of a Boolean
object.
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Syntax
bool.valueOf()
Return value
The primitive value of the given Boolean
object
Description
The valueOf()
method of Boolean
returns the primitive value of a Boolean
object or literal Boolean
as a Boolean data type.
This method is usually called internally by JavaScript and not explicitly in code.
Examples
Using valueOf()
x = new Boolean();
myVar = x.valueOf(); // assigns false to myVar
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'Boolean.prototype.valueOf' in that specification. |
Browser compatibility
BCD tables only load in the browser
See also
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